Some links on this page are affiliate links: we may earn a commission, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. How this works
Triathlon watches, compared
All 30 we’ve checked against the maker’s own site, side by side. We don’t rank them by hands-on testing: the table is the published specs, and the tool below matches them to you.
| Product | GPS battery | Smartwatch battery | Triathlon / multisport mode | Onboard maps | Open-water GPS (our rating) | Weight | Screen | Price |
|---|---|---|---|---|---|---|---|---|
| Amazfit Balance 2 | 33 h | 21 days | Yes | Yes | 5 / 5 | 43 g | AMOLED | Check price → |
| Amazfit Cheetah 2 Pro | 31 h | 20 days | Yes | Yes | 5 / 5 | 45.6 g | AMOLED | Check price → |
| Amazfit T-Rex 3 | 42 h | 27 days | Yes | Yes | 5 / 5 | 68.3 g | AMOLED | Check price → |
| Apple Watch Ultra 4 | 18 h | 2.1 days | Yes | Yes | 5 / 5 | 63 g | Always-On Retina LTPO3 wide-angle OLED | Check price → |
| COROS APEX 2 | 40 h | 13 days | Yes | Yes | 4 / 5 | 53 g | MIP (Memory LCD) | Check price → |
| COROS APEX 4 (46 mm) | 53 h | 24 days | Yes | Yes | 5 / 5 | 64 g | MIP | Check price → |
| COROS NOMAD | 50 h | 22 days | Yes | Yes | 5 / 5 | 61 g | MIP | Check price → |
| Coros Pace 3 | 38 h | 15 days | Yes | No | 5 / 5 | 30 g | Memory LCD (MIP-type) | Check price → |
| COROS PACE 4 | 41 h | 19 days | Yes | Yes | 5 / 5 | 40 g | AMOLED | Check price → |
| COROS PACE 4 Pro | 60 h | 21 days | Yes | Yes | 5 / 5 | 51 g | LTPO AMOLED | Check price → |
| COROS PACE Pro | 38 h | 20 days | Yes | Yes | 5 / 5 | 49 g | AMOLED | Check price → |
| COROS VERTIX 2S | 118 h | 36 days | Yes | Yes | 5 / 5 | 87 g | Memory LCD (MIP-type) | Check price → |
| Garmin Enduro 3 | 120 h | 36 days | Yes | Yes | 5 / 5 | 63 g | MIP | ~$800 Check price → |
| Garmin Fenix 8 (47mm) | 47 h | 16 days | Yes | Yes | 5 / 5 | 80 g | AMOLED | Check price → |
| Garmin fenix 8 AMOLED (43 mm) | 28 h | 10 days | Yes | Yes | 5 / 5 | 66 g | AMOLED | ~$1,000 Check price → |
| Garmin fenix 8 AMOLED (51 mm) | 84 h | 29 days | Yes | Yes | 5 / 5 | 102 g | AMOLED | ~$1,100 Check price → |
| Garmin Fenix E | 42 h | 16 days | Yes | Yes | 4 / 5 | 76 g | AMOLED | Check price → |
| Garmin Forerunner 165 | 19 h | 11 days | No | No | 3 / 5 | 39 g | AMOLED | Check price → |
| Garmin Forerunner 265 | 20 h | 13 days | Yes | No | 5 / 5 | 47 g | AMOLED | Check price → |
| Garmin Forerunner 55 | 20 h | 14 days | No | No | 3 / 5 | 37 g | MIP | Check price → |
| Garmin Forerunner 570 (47 mm) | 18 h | 11 days | Yes | No | 5 / 5 | 50 g | AMOLED | Check price → |
| Garmin Forerunner 965 | 31 h | 23 days | Yes | Yes | 5 / 5 | 53 g | AMOLED | Check price → |
| Garmin Forerunner 970 | 26 h | 15 days | Yes | Yes | 5 / 5 | 56 g | AMOLED | Check price → |
| Garmin Instinct 3 AMOLED (45 mm) | 32 h | 18 days | Yes | No | 5 / 5 | 53 g | AMOLED | ~$350 Check price → |
| Garmin Venu X1 | 16 h | 8 days | Yes | Yes | 4 / 5 | 34 g | AMOLED | Check price → |
| Polar Grit X2 Pro | 43 h | 10 days | Yes | Yes | 5 / 5 | 79 g | AMOLED | Check price → |
| Polar Vantage M3 | 30 h | 7 days | Yes | Yes | 5 / 5 | 53 g | AMOLED | Check price → |
| Polar Vantage V3 | 43 h | 10 days | Yes | Yes | 5 / 5 | 57 g | AMOLED | Check price → |
| Suunto Race S | 30 h | 9 days | Yes | Yes | 5 / 5 | 60 g | AMOLED | Check price → |
| Suunto Run | 20 h | 12 days | Yes | No | 5 / 5 | 36 g | AMOLED | Check price → |
Specs come from each maker’s own product pages. A dash means the maker doesn’t publish that figure. Prices are shown only where the maker’s own store lists them; for other retailers, see the current price on their site. Last checked 2026-11-02. Open-water GPS is our 1–5 rating from the satellite systems each maker lists: multi-band receivers score 5.
Popular head-to-heads
- Garmin Forerunner 55 vs Garmin Forerunner 965
- Coros Pace 3 vs Garmin Forerunner 965
- Garmin Forerunner 265 vs Garmin Forerunner 965
- Garmin Fenix E vs Garmin Forerunner 965
- COROS APEX 2 vs Garmin Forerunner 965
- Garmin Fenix 8 (47mm) vs Garmin Forerunner 965
- Garmin Forerunner 165 vs Garmin Forerunner 965
- Coros Pace 3 vs Garmin Forerunner 55
- Garmin Forerunner 265 vs Garmin Forerunner 55
- Garmin Fenix E vs Garmin Forerunner 55
- Coros Pace 3 vs Garmin Forerunner 265
- Coros Pace 3 vs Garmin Fenix E
See all 435 comparisons in this category →